In order to safeguard the confidentiality of respondents at the highest level, some data require an application process for access.

Restricted Data
Apply to access restricted data via secure remote access through a Virtual Data Enclave (VDE). Additional geographic-level restricted data can be accessed through the Michigan Center on the Demography of Aging (MiCDA) Geographic Linkages Repository (GLR).

Sensitive Data
Apply to access PSID sensitive data through the PSID website.

CMS (Medicare and Medicaid) Data
Apply to access Data from the Centers for Medicare & Medicaid Services (CMS) through the NIA Data LINKAGE Program (LINKAGE).